Openings

Variation
English
    Bremen, Smyslov system Capablanca's Variation Carls' Bremen system Caro-Kann defensive system Caro-Kann defensive system, Bogolyubov Variation Closed system Closed system (without ...d6) Closed, 5.Rb1 Closed, 5.Rb1 Taimanov Variation Closed, Hort Variation Closed, Taimanov Variation Four knights system Four knights, 4.e3 Four knights, Capablanca Variation Four knights, kingside Fianchetto Four knights, Marini Variation Four knights, Nimzovich Variation Four knights, Romanishin Variation Four knights, Stean Variation Jaenisch gambit Kurajica defense London defensive system Mikenas-Carls Variation Mikenas-Carls, Flohr Variation Mikenas-Carls, Kevitz Variation Mikenas-Carls, Sicilian Variation Nenarokov Variation Neo-Catalan Neo-Catalan accepted Neo-Catalan declined New York (London) defensive system Nimzo-English Opening Queens Indian formation Queens Indian, Romanishin Variation Romanishin gambit Sicilian Reversed Symmetrical Variation Symmetrical, Benoni formation Symmetrical, Botvinnik system Symmetrical, Botvinnik system Reversed Symmetrical, Four knights system Symmetrical, Geller Variation Symmetrical, hedgehog system Symmetrical, hedgehog, flexible formation Symmetrical, Keres defense Symmetrical, Main line with b3 Symmetrical, Main line with d3 Symmetrical, Main line with d4 Symmetrical, Rubinstein system Symmetrical, Three knights system Three knights system Torre defensive system ultra-Symmetrical Variation Wimpey system
    English Opening
      Agincourt Variation
      Evans gambit
        5...Be7 Alapin-Steinitz Variation compromised defense compromised defense, Paulsen Variation compromised defense, Potter Variation Cordel Variation Fraser attack Fraser-Mortimer attack Goering attack Lasker defense Leonhardt Variation Levenfish Variation Mayet defense Morphy attack normal Variation Paulsen Variation Richardson attack Sanders-Alapin Variation Sokolsky Variation Steinitz Variation Stone-Ware Variation Tartakower attack Ulvestad Variation Waller attack
        Four knights
          Alatortsev Variation Bardeleben Variation Belgrade gambit double Ruy Lopez Gunsberg counter-attack Gunsberg Variation Italian Variation Janowski Variation Marshall Variation Nimzovich (Paulsen) Variation Ranken Variation Rubinstein counter-gambit Rubinstein counter-gambit Maroczy Variation Rubinstein counter-gambit, 5.Be2 Rubinstein counter-gambit, Bogolyubov Variation Rubinstein counter-gambit, Exchange Variation Rubinstein counter-gambit, Henneberger Variation Schultze-Mueller gambit Scotch Variation Scotch, 4...exd4 Scotch, Krause Variation